Home / 8,290.28-11,436.21-4,930.70

Finding the Fourth Proportional to 8,290.28, 11,436.21 and 4,930.70

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Solution

The fourth proportional to 8,290.28, 11,436.21 and 4,930.70 is: 6,801.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,290.28 : 11,436.21 = 4,930.70 : x
  2. Step 2: Convert to fraction form
    8,290.28/11,436.21 = 4,930.70/x
  3. Step 3: Cross multiply
    8,290.28x = 11,436.21 × 4,930.70
  4. Step 4: Simplify right side
    8,290.28x = 56,388,520.65
  5. Step 5: Solve for x
    x = 56,388,520.65/8,290.28
  6. Step 6: Final answer
    x = 6,801.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.